Home / 130,107.24-179,695.80-87,591.96

Finding the Fourth Proportional to 130,107.24, 179,695.80 and 87,591.96

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Solution

The fourth proportional to 130,107.24, 179,695.80 and 87,591.96 is: 120,976.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,107.24 : 179,695.80 = 87,591.96 : x
  2. Step 2: Convert to fraction form
    130,107.24/179,695.80 = 87,591.96/x
  3. Step 3: Cross multiply
    130,107.24x = 179,695.80 × 87,591.96
  4. Step 4: Simplify right side
    130,107.24x = 15,739,907,325.77
  5. Step 5: Solve for x
    x = 15,739,907,325.77/130,107.24
  6. Step 6: Final answer
    x = 120,976.41

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.